An Overview of Agile Testing

Transcription

1 An Overview of Agile Testing Tampere 2009 Lisa Crispin With Material from Janet Gregory 1

2 Introduction Tester on agile teams since 2000 My teams: Delight customers Deliver production-ready value every 2 weeks Drive development with tests, examples 100% regression test automation 2

3 Your Agile Experience How about you? Managers, testers, developers, ScrumMasters...? How long has your team used agile practices/principles? 3

4 Takeaways Transitioning to agile testing How testing works on agile teams Agile testing tools and techniques Key success factors 4

5 Traditional vs. Agile SDLC Requirements Specifications Phased or gated eg. Waterfall Code Testing Release Agile: iterative and incremental - Each story is expanded, coded and tested - Possible release after each iteration D C C A B A B A B It 1 It 2 It 3 Time Copyright 2009 Lisa Crispin and 5 Janet Gregory

6 Testing as a Phase Code, then test Separate, siloed teams Heavyweight process Requirements, design documents Test plans Traceability Change review boards Testing bottleneck at end 6

7 Automation - After Coding Vendor tools Record/Playback Done by testers or automation team If developers automate unit tests it s after coding Expensive 7

8 Exploratory Testing agile Exploring reveals unintended consequences and uncovers implicit expectations Elisabeth Hendrickson /05/18/from-th box-fully-automated-guitesting/Careful observation Critical thinking, no requirements doc needed Diverse ideas Rich resources Tools, data, people [source: Jon Hagar] 8

9 How Agile Changes Things Whole Team Approach Coding and testing are one process Feedback, collaboration key TDD/ATDD practices Test-infected developers, better tools, betterdesigned tests 9

10 Team Organization - Traditional vs. Agile Traditional: independent functional groups BAs Tester Dev Domain Expert Programmer Agile: roles overlap Tester Copyright 2009: Crispin Copyright 2007: Lisa Crispin and Janet Gregory 10

11 Test Approach - The Agile Way Project Initiation Get an understanding of the project Release Planning Participate in estimating stories Create Test Plan Each Iteration 1. X Write and execute story tests Write and execute new functional test cases Pair test with other testers, developers Automate new functional test cases Run automated regression test cases System Test / End Game Perform Load Test Complete Regression Test Perform UAT Perform Mock Deploy Participate in Release Readiness Release to Prod/ Support Participate in Release to Prod Participate in Retrospectives Copyright 2007: Lisa Crispin 11 and Janet Gregory

12 The Whole Team Approach Team commitment to quality Team responsible for testing Testers get support, training Developers do testing activities Testers and developers pair Get the right people 12

13 Testing is Not a Phase Development = testing + coding Write test, write code, test At unit and acceptance test levels Automated tests Designed for efficiency, maintainability Free time for exploratory testing Team plans testing activities All four quadrants 13

14 Agile Testing Quadrants 14

15 Feedback Guides Development Team uses feedback to improve Testers are expert feedback providers Feedback lets team make course corrections 15

16 Feedback Examples Continuous Integration test results Faster is better Big Visible Charts Retrospectives Short iterations facilitate improvement Discoveries during exploratory testing Collaboration with users, customers 16

17 Core Practices for Success Continuous integration Frequent and fast feedback Coding and testing one process Test environments Manage technical debt Work incrementally Synergy 17

18 Where Is It Taking Us? Lines between roles blurred More focus on tests to drive coding Examples as requirements Find ways to control technical debt Tests pushed to lower levels Less end-to-end automation Automate based on ROI Maintainable tests Failures easier to debug 18

19 Test Automation Pyramid 19

20 Current Trends in Testing/Development Pomodoro technique for pairing, planning More exploratory testing As automated regression tests free time context-driven-testing.com Lean approaches Kanban, scrumban Poppendiecks books 20

21 More Current Trends Continuous Integration is a given More frequent releases Expanded test tool options Low-tech prototyping, tracking More early collaboration Behavior-Driven Development (BDD) 21

22 BDD/Narrative/Scenario Example Given that the FitNesse wiki is a Wiki Given that the FitNesse User is a Web User Given that the FitNesse wiki was able to start for the first 7me When the FitNesse User a9empts to go to the Home Page Then the content of the Home Page for the FitNesse User should be Welcome to the Wonderful World of FitNesse! From: Antony Marcano, Andy Palmer, testingreflections.com, pairwith.us 22

23 Scaling Up and out Larger organizations adopt agile My company has 28 Scrum teams More remote team members Need the best people, so Hire them where they live Technology enables NOT remote test teams! 23

24 Test Tools Mix & Match open source frameworks/drivers Vendor tools getting lighter weight GUIdancer object-oriented FitNesse/Slim/Fit widely used Framework for many other tools BDD tools growing in popularity Cucumber, easyb, nbehave GUI test drivers standardizing Watir, Selenium, Robot Framework 24

25 A S E R T Testing Tool Spectrum (Paul King, asert.au) Utilities All Pairs Combinations Polyglot languages Logic programming Threads, Parallel concurrency libraries Data-driven libraries Networking libraries XML Processing Read/write files, Excel / Word / CSV, Reporting, Logging Tools itest2, SoapUI, Twist, GUIdancer, IDEs, JMeter, Text editors, Recorders, Build Tools, CI Runners Native Groovy, JUnit, TestNG, Spock, EasyB, JBehave, Cucumber, Robot Framework, Slim Web Drivers WebTest WebDriver JWebUnit Tellurium Selenium HtmlUnit Watij HttpBuilder Cyberneko Database Drivers DbUnit DataSets SqlUnit groovy.sql JPA JDO BigTable JDBC SOAP / REST Drivers GroovyWS XML-RPC CXF Axis2 JAX-WS JAX-RS Other Drivers FEST FTP AntUnit Telnet SSH Exec Agile

26 Trends in Test Automation Record/Playback as trainer only Test architecture/design critical Planning and tracking tools online and lowtech Open source, agile tools explosion Plenty of good browser test drivers Other problems now being solved Scenario, Narrative style 26

27 Testing Techniques Team writes acceptance tests together Programmers and testers pair to automate tests ROI guides automation Testers do exploratory testing Customers participate Pair with customers for ET Frequent demos 27

28 What Does It Mean for Us? Values more important than process, practices Testers need to adopt new mindset Ramp up skills More creative thinking, problem-solving Do what works for your team Don t blindly follow trends 28

29 Key Success Factors 29

30 Do Your Best Work Whole Team approach Testers, customers, developers collaborate Business examples, turned into tests Agile Testing Quadrants Test Automation Pyramid Exploratory testing 30

31 The Future is What You Make It Get out of your chair see how you can help Learn a new test framework or scripting language today - build your skills Lots of free resources, just takes time Leave your comfort zone Bring testing problems to the whole team Benefit from multiple skill sets How can your expertise help the team? 31

32 Questions? 32

33 Some Agile Testing Resources lisacrispin.com janetgregory.ca exampler.com testobsessed.com Antonymarcano.com 33

34 Bridging the Communication Gap Specification By Example and Acceptance Testing Gojko Adzic 34 Copyright Copyright 2008 Janet 2009: Gregory, Lisa Crispin DragonFire

35 Now Available Agile Testing: A Practical Guide for Testers and Agile Teams By Lisa Crispin and Janet Gregory Copyright : Lisa Crispin